Fuzzy PI+Fuzzy ID Controller for PMSM Servo System

In order to overcome the parameter uncertainties, enhance the fast tracking performance of PMSM servo system, a brand-new two-dimension PED fuzzy controller, fuzzy PI+ fuzzy ED, is proposed first in this paper. The self-tuning fuzzy PI+ fuzzy ID controller is fast; computing on-line easily and can reduce stability error, especially fitting for application in the speed control of the PMSM servo system. To demonstrate the advantages of the fuzzy PI+ fuzzy ID controller, the simulation was executed in this research. The simulation results show that the proposed control scheme not only enhances the fast tracking performance, but also increases the robustness of the synchronous motor drive system.